A member asked:

Is a person with sars contagious before symptoms appear?

4 doctors weighed in across 2 answers
Dr. William Walsh answered

Specializes in Addiction Medicine

Yes: Often, early in the incubation period the patient will shed virus prior to becoming ill; usually for this virus that period can be 3-10 days.

Answered 3/3/2012

6.1k views

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Dr. Michael Ein answered

Specializes in Infectious Disease

Not very: Patients with sars are most contagious only after lower respiratory disease developed.

Answered 12/8/2012

5.4k views

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Related Questions

A member asked:

How long is a person with sars infectious to others?

4 doctors weighed in across 2 answers